title: Dissolved phosphorus retention of light-weight expanded shale and masonry sand used in subsurface flow treatment wetlands.
mesh_terms: D001673:Biodegradation, Environmental; D003252:Construction Materials; D017753:Ecosystem; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry; D010758:Phosphorus / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D012822:Silicon Dioxide; D012995:Solubility; D018508:Water Purification / Q000379:methods*
chemical_list: D010758:Phosphorus; D012822:Silicon Dioxide